Company lists · Data refreshed September 2026

Top 16 Subsea energy companies based in Australia

RevenueBase identified 40 company matches for subsea energy companies associated with Australia as of September 2026 and tracks 1,757 professional contacts across them, including 594 with verified work emails. Perth is the largest hub.

This list covers company matches for subsea energy companies associated with Australia, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 18, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 18, 2026 How this list was built
40Companies
1,757Contacts tracked
594Verified emails
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The 16 largest subsea energy companies based in Australia

Ranked by team size
Top 16 of 40 company matches for subsea energy companies based in Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 18, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchWest Perth, AustraliaHQ recorded Sep 18, 2026201-500576 contacts →

Exact match

“GO OFFSHORE is an international energy services company, specialising in marine services to the offshore industry.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
2Exact matchPerth, AustraliaHQ recorded Sep 18, 2026501-1,000376 contacts →

Exact match

“Bhagwan Marine is Australia's largest marine solutions provider operating in the offshore energy, subsea, ports & inshore and defence sectors.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
3Exact matchPerth, AustraliaHQ recorded Sep 18, 20261,001-5,000252 contacts →

Exact match

“Cyan Renewables (rebranded from MMA Offshore in July 2025) is a leading provider of marine and subsea services supporting the global energy transition.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
4Exact matchOsborne Park, AustraliaHQ recorded Sep 18, 2026201-50040 contacts →

Exact match

“Geo Oceans are an innovative subsea technology company offering industry-leading survey and inspection services to the Oil & Gas industry, we are proud to be part of the Vertech…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
5Exact matchBibra Lake, AustraliaHQ recorded Sep 18, 202611-5029 contacts →

Exact match

“Blue Ocean Marine Tech Systems is an ocean technology company specialising in the design, development and commercialisation of autonomous subsea data collection and survey systems.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
6Exact matchWelshpool, AustraliaHQ recorded Sep 18, 202611-5028 contacts →

Exact match

“Blakemere - Subsea | Mining | Energy”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
7Exact matchPerth, AustraliaHQ recorded Sep 18, 20261,001-5,00022 contacts →

Exact match

“At MMA Offshore, we specialise in providing high-specification vessels and a comprehensive suite of marine and subsea services to the offshore energy and wider maritime industries.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
8Exact matchKingston, AustraliaHQ recorded Sep 18, 202611-506 contacts →

Exact match

“SOSub specialise in custom ROV and Subsea solutions, with an emphasis on aquaculture, science, and one-off special projects and tooling.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
9Exact matchCanning Vale, AustraliaHQ recorded Sep 18, 20261-105 contacts →

Exact match

“DART Technologies (DARTT) is an engineering company founded in 2009 and is located in Perth, Western Australia.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
10Exact matchBrisbane, AustraliaHQ recorded Sep 18, 202611-505 contacts →

Exact match

“Subsea Pty Ltd is a professional marine company offering a wide range of subsea services in support of environmental and engineering surveys and assessments.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
11Exact matchMelbourne, AustraliaHQ recorded Sep 18, 202611-504 contacts →

Exact match

“SubseaCo is a project management, engineering and project control company that specializes in subsea and offshore projects.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
12Exact matchPerth, AustraliaHQ recorded Sep 18, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
13Exact matchMount Waverley, AustraliaHQ recorded Sep 18, 20261-102 contacts →

Exact match

“Overview Mooring System Solutions Pty Ltd.(trading as Moorsure) brings together leaders in the field of advanced mooring engineering services and a global supplier of a wide range…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
14Exact matchMaida Vale, AustraliaHQ recorded Sep 18, 20261-102 contacts →

Exact match

“Seadraulics tooling utilizes the latest technologies to supply innovative solutions to subsea operators in a form that removes much client intervention to get the tooling to work.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
15Exact matchSouth Fremantle, AustraliaHQ recorded Sep 18, 202611-501 contacts →

Exact match

“Our highly qualified and experienced personnel, state of the art equipment, facilities and commitment to meeting and exceeding client expectations has put Indianic at the…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
16Exact matchWelshpool, AustraliaHQ recorded Sep 18, 20261-101 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase

Showing 16 of 40 subsea energy companies based in Australia

See the full list, filter by size, metro and specialty, and access 594 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Subsea energy companies based in Australia at a glance

As of Sep 18, 2026
33.8%Verified-email coverage
43.9Average contacts per company
11-50Median size (employees)
32.5%Largest-city concentration · Perth
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
15
11-50
15
51-200
5
201-500
2
501-1,000
1
1,001-5,000
2

Email recency for this list is measured worldwide rather than for Australia, so it is reported there. Company counts and contact totals on this page are exact for Australia, over 40 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Australia whose business descriptions match “subsea energy companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 594 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 18, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “subsea energy companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many subsea energy companies are there based in Australia?

RevenueBase identified 40 company matches for subsea energy companies associated with Australia as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

GO Offshore tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most subsea energy companies?

Perth leads with 13 company records, followed by Melbourne (3) and Welshpool (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 594 professional contacts with verified work emails tracked across these 40 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 18, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.